Listen! Rebecca Black and Katy Perry Duet!

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We’re lying. Rebecca Black and Katy Perry don’t have a new new song together (that’s Katy Perry and Kanye West, sillies!) but the two do have an amazing mash-up dedicated to — you guessed it — our fave day of the week. Friday! It’s a combo between Rebecca’s one-hit wonder song “Friday” and Katy’s “Last Friday Night,” appropriately titled “T.G.I Friday,” not to be mistaken for the restaurant chain. In case you were confused.

Click to hear the song!

MORE: Katy Perry and Kanye West’s music video for “E.T.!”

Just click here to hear the mashup and tell us what you think of it in the comments!